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A low temperature stop valve, Unlike Example 1, Comprises a valve body 1 and a valve cover 2, A valve stem 3 is arrange in that valve body 1, One end of the valve stem 3 is provided with a valve disc 4, The other end of the valve stem 3 is provided with an adjusting handwheel 5, A low portion of that disc 4 is provided with a guide sleeve 6, The guide sleeve 6 is fixed by means of a connecting piece and a spring pad 8, Between that disc 4 and the guide sleeve 6 is provide a valve seat 7, Between that valve stem 3 and the valve cov 2 there is provided a packing assembly 9, The O-ring 10 is further arranged at the upper part of the packing assembly 9, the upper part of the O-ring 10 is provided with a packing gland 11, the valve body 1 is provided with an arc-shaped end face 12, the arc-shaped end face 12 forms a line seal between the valve body 1 and the valve seat 7, the contact end of the valve disc 4 and the valve seat 7 is provided with a water grain surface 41, the packing assembly 9 comprises a flexible graphite packing layer, and the valve body 1 is provided with a liquid inlet cavity and a liquid outlet cavity.该剧定位于悬疑爱情单元剧，由几个看似不相关的案件串联起来，揭露了人性的罪与恶。剧集中每个案件都相对独立又环环相扣互为因果，每个人都是加害者又是受害者，我的手是加害者的手，我的眼是受害者的眼。这是一场始于爱的杀戮，一场终于情的牺牲。在理性与逻辑的尽头，真相的背后让你不禁流泪。This.source = new Source ();After entering, select Advanced System Settings, and then select Environment Variables兰英50年代末嫁到桃花峪，婆婆刘淑玉守旧固执。兰英与婆婆之间艰难磨合，但还是坚强地捍卫着心里的那份纯真和善良。80年代初，儿媳金娣走进了这个家。恰逢改革开放，金娣承包豆腐坊，搞虹鳟鱼养殖，虽然艰辛，却得到婆婆兰英的支持；丈夫秋山[1]因车祸失去一条腿,两口子之间出现矛盾,婆婆兰英从中调解.婆媳共同努力,把“好山好水”农家乐办得风生水起，并成立了民俗旅游合作社。当时光进入新千年，北京迎来奥运会之际，李家第四代李响和准儿媳妇柳青青回乡创业，在当地影视基地办起了动漫城，由此引发了家庭的新一轮矛盾。而矛盾的化解中尽显亲情。两个背景截然不同的人在一起,共同挑战可能发生在任何人身上的求生场景:划船被困、远足迷路、登山遇险等。在真实环境中携带最少的配备,必须依靠他们的生存...此剧讲述一个失去希望、人生被践踏的女人，决定隐秘地朝着目标前进，并以无数谎言堆砌自己事业的故事。